Gage-cock.



L. T. MART.

GAGE COCK. APPLICATION FILED MAR. 3|19l4.

1 12 630, v Patel med Nov. 30, 1915.

LEON T. MART, OF YOUNGSTOWN, OHIO.

GAGE-COCK.

Specification of Letters Patent.

Patented Nov. 30, 1915.

Application filed March 3, 1914. Serial No. 822,155.

To all who-mv it may concern:

Be it known that I, LEON T. MART, a citizen of the United States,residing at Youngstown, in the county of Mahoning and State of Ohio,have invented certain new and useful Improvements in Gage-Cocks; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to gage cocks, and one of the principal objectsof the invention is to provide efficient means for automatically closingthe outlet opening in the cock when it is desired to remove the valvefor cleaning or repairing the valve seat and valve.

Another object of the invention is to provide a gage cock of simpleconstruction comprising a valve, a removable seat for said valve, andmeans whereby the outlet opening in the cock is automatically closedwhen the valve seat and valve are removed for cleaning or repairing thevalve or its seat.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawing, in which,

Figure 1 is a vertical sectional view taken through the cock and showingpop lever and connected parts in elevation, Fig. 2 is a sec tional viewtaken through the valve casing with the valve seat member and valveremoved, and the opening closed by the repairing valve, Fig. 3 is asectional view taken on the line 3-3 of Fig. 1.

Referring to the drawing, the numeral 1 designates the valve casing,which is reduced and screw threaded at 2 for engagement with a watercolumn of a boiler. The casing 1 is provided with a screw threaded bore3 near its outer end, and a communicating recess 4: of greater diameterthan the screw threaded bore. Fitted within the threaded bore 3 is avalve seat member comprising a plane annular member 5 having an integralboss 6 threaded to fit the bore 3 at its inner end, and provided with avalve seat 7 for a ball valve 8. The portion 6 of the valve seat memberis provided with a perforation 9 which .is disposed in alinement withthe outlet opening 10 in the valve casing 1, said outlet opening 10communicating with the recess 4:. A boss 11 formed integral with themember 5 is provided with a central opening 12 which extends throughboth the boss 11 and the member 5 into the enlarged recess 13 in thevalve seat member 6. A sliding stem lat is mounted in the bore, with itsinner end disposed in contact or nearly in contact with the valve 8,while the outer end normally extends some distance beyond the boss 11,as shown more clearly in Fig. 1. The pop lever 15'is pivotally connectedat 16 to a bracket 17 provided with a ring 18 encircling the boss 11 andsecured thereto by means of a set screw 19. The pop lever 15 is providedwith a depending arm 20 disposed in alinement with the outer end of thestem 14, and said pop lever is provided with a depending operating rod21 having a handle 22 thereon. The valve casing 1 is provided with arecess 23 having annular walls 24, and seated in the said recess is therepair valve 25. The recess 23 communicates with the outlet opening 10through the duct 26 when the valve 8 is unseated. A fiaring'valve seat27 is formed within the casing 1 for the repair valve 25, and threadedmember 28 is fitted within the valve casing to hold the repair valve 25in the recess 23.

When the lever 15 is operated, the stem 14 is forced against the valve 8to unseat the same and to permit the steam and water to pass through therecess 13 and out through the discharge opening 10. In case of a leakageowing to the imperfect seating of the valve 8 against the seat 7, thevalve seat member may be withdrawn by means of a suitable tool, and thevalve 8 withdrawn, when the pressure from the boiler will move therepair valve 25 up against the valve seat 27 to prevent escape of thesteam. When the valve and the valve seat member have been cleaned andrepaired, the parts may be readily connected up as shown in Fig. 1.

From the foregoing it will be obvious that a gage cock made inaccordance with this invention is simple in construction and provides areliable and eflicient means for closing the outlet when it is necessaryto remove the valve for regrinding, cleaning, or repairing.

Various changes may be made in the details of construction withoutdeparting from the spirit and scope of the invention as defined in theclaim.

That is claimed is 2- A gage cock comprising a casing having a boreextending therethrough, said bore being restricted intermediate itslength to provide an annular shoulder, a seat member removably securedin the outer end of the casing and provided With an axial boreregistering with the bore of said casing, and an outlet portcommunicating With said axial bore, said seat member terminatingadjacent said shoulder, a ball valve disposed in said casing bore andadapted to seat on said seat member, a second ball valve housed Withinsaid casing bore on the inlet side of said shoulder, said second ballbeing of larger diameter than the restricted portion of the casing boredefined by said shoulder, the said shoulder providing a seat for thesecond valve, a tubular member threaded into the inner end of the casingbore to retain the second ball va-lve'within said casing bore, means forunseating the first named valve, the two valves being normally incontacting relation, and the first named valve normally preventing theseating of the second valve.

In testimony whereof I ai'liX my signature in presence of two Witnesses.

LEON r. MART.

I Witnesses V L. l/VAGNER, VENICE J. LAMB,

Copies of this patent may be obtained for five cents eaeh, by addressingthe Commissioner of l atents Washington, D. 0.

